JP6087508B2 - バックライトユニット及びそれを用いたディスプレイ装置 - Google Patents

バックライトユニット及びそれを用いたディスプレイ装置 Download PDF

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Publication number
JP6087508B2
JP6087508B2 JP2012042486A JP2012042486A JP6087508B2 JP 6087508 B2 JP6087508 B2 JP 6087508B2 JP 2012042486 A JP2012042486 A JP 2012042486A JP 2012042486 A JP2012042486 A JP 2012042486A JP 6087508 B2 JP6087508 B2 JP 6087508B2
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JP
Japan
Prior art keywords
groove
guide plate
light guide
light
light source
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2012042486A
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English (en)
Japanese (ja)
Other versions
JP2013026213A5 (ko
JP2013026213A (ja
Inventor
チョン・サンヒョク
キム・ムンジョン
キム・ジョンファン
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Innotek Co Ltd
Original Assignee
LG Innotek Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Innotek Co Ltd filed Critical LG Innotek Co Ltd
Publication of JP2013026213A publication Critical patent/JP2013026213A/ja
Publication of JP2013026213A5 publication Critical patent/JP2013026213A5/ja
Application granted granted Critical
Publication of JP6087508B2 publication Critical patent/JP6087508B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0078—Side-by-side arrangements, e.g. for large area displays
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
JP2012042486A 2011-07-15 2012-02-28 バックライトユニット及びそれを用いたディスプレイ装置 Expired - Fee Related JP6087508B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110070376A KR101830718B1 (ko) 2011-07-15 2011-07-15 디스플레이 장치
KR10-2011-0070376 2011-07-15

Publications (3)

Publication Number Publication Date
JP2013026213A JP2013026213A (ja) 2013-02-04
JP2013026213A5 JP2013026213A5 (ko) 2015-04-16
JP6087508B2 true JP6087508B2 (ja) 2017-03-01

Family

ID=45656364

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012042486A Expired - Fee Related JP6087508B2 (ja) 2011-07-15 2012-02-28 バックライトユニット及びそれを用いたディスプレイ装置

Country Status (6)

Country Link
US (1) US20130016521A1 (ko)
EP (1) EP2546685B1 (ko)
JP (1) JP6087508B2 (ko)
KR (1) KR101830718B1 (ko)
CN (1) CN102878477B (ko)
TW (1) TWI570482B (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150362653A1 (en) * 2014-06-17 2015-12-17 Shenzhen China Star Optoelectronics Technology Co., Ltd. Backlight module
CN104006337A (zh) * 2014-06-17 2014-08-27 深圳市华星光电技术有限公司 背光模组
KR101710520B1 (ko) 2015-10-02 2017-02-27 한국과학기술원 로컬 디밍이 가능한 백라이트 유닛
KR20210015342A (ko) * 2019-08-01 2021-02-10 엘지이노텍 주식회사 조명 장치

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US7108414B2 (en) * 1995-06-27 2006-09-19 Solid State Opto Limited Light emitting panel assemblies
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JP2004319340A (ja) * 2003-04-17 2004-11-11 Kawaguchiko Seimitsu Co Ltd バックライトユニット
TWI257018B (en) * 2004-07-07 2006-06-21 Epistar Corp A back light module with independent light source
KR20060012959A (ko) * 2004-08-05 2006-02-09 삼성전자주식회사 표시 장치용 백라이트
WO2006131924A2 (en) * 2005-06-07 2006-12-14 Oree, Advanced Illumination Solutions Inc. Illumination apparatus
CN101248378B (zh) * 2005-08-24 2011-03-09 皇家飞利浦电子股份有限公司 照明模块
JP4631628B2 (ja) * 2005-09-13 2011-02-16 日本電気株式会社 照明装置及び表示装置
JP4600257B2 (ja) * 2005-11-25 2010-12-15 ソニー株式会社 導光板、バックライト装置とその製造方法及び液晶表示装置
KR20070096457A (ko) * 2006-03-24 2007-10-02 엘지전자 주식회사 광 파이프를 이용한 면 광원 장치, 이를 구비한 백라이트유닛 및 액정 표시 장치
CN101126866B (zh) * 2006-08-17 2010-12-29 奇美电子股份有限公司 直下式背光模块及包含该背光模块的液晶显示装置
JP4840779B2 (ja) * 2007-04-19 2011-12-21 スタンレー電気株式会社 面光源装置
CN101295038A (zh) * 2007-04-27 2008-10-29 鸿富锦精密工业（深圳）有限公司 背光模组及其光学板
CN101299113B (zh) * 2007-04-30 2011-06-29 鸿富锦精密工业（深圳）有限公司 背光模组及其光学板
CN101308225B (zh) * 2007-05-18 2011-07-27 鸿富锦精密工业（深圳）有限公司 背光模组及其光学板
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WO2010058625A1 (ja) * 2008-11-20 2010-05-27 シャープ株式会社 照明装置、表示装置、及びテレビ受信装置
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KR101255287B1 (ko) * 2009-07-16 2013-04-15 엘지디스플레이 주식회사 백라이트 유닛
WO2011025172A2 (en) * 2009-08-27 2011-03-03 Lg Electronics Inc. Backlight unit and dipslay device
CN102511012B (zh) * 2009-09-21 2014-10-15 皇家飞利浦电子股份有限公司 包含具有眩光减弱的反射屏蔽的光导板的发光设备
KR20110068382A (ko) * 2009-12-16 2011-06-22 삼성전자주식회사 백라이트유닛 및 이를 가지는 디스플레이장치

Also Published As

Publication number Publication date
EP2546685A1 (en) 2013-01-16
CN102878477A (zh) 2013-01-16
KR101830718B1 (ko) 2018-02-22
EP2546685B1 (en) 2018-11-28
US20130016521A1 (en) 2013-01-17
TW201303449A (zh) 2013-01-16
CN102878477B (zh) 2017-05-31
JP2013026213A (ja) 2013-02-04
KR20130009342A (ko) 2013-01-23
TWI570482B (zh) 2017-02-11

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